Photoresistive measurement of the Pavlovian conditioned eyelid response in human subjects.
An inexpensive technique is described for measuring eyelid closure during classical (Pavlovian) conditioning experiments. This technique employs a Coulbourn Instruments Co. densitometric device that focuses a beam of infrared light on the cornea. Reflection of the light is interrupted by the eyelids when they are closed, which is sensed by an infrared detector. The latter causes a voltage change to occur, which can then be measured in a variety of ways. Details of both the hardware required and software developed for this purpose are described.
Durkin
M
M
Neuroscience Laboratory (151A), VA Medical Center, Columbia, SC 29201.
Prescott
L
L
Jonet
C J
CJ
Frank
E
E
Niggel
M
M
Powell
D A
DA
D001143:Arousal; D003214:Conditioning, Classical; D003215:Conditioning, Eyelid; D006801:Humans; D008838:Microcomputers; D010775:Photic Stimulation / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D012984:Software; D014159:Transducers